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. Author manuscript; available in PMC: 2015 Feb 1.
Published in final edited form as: Crit Care Med. 2014 Feb;42(2):e143–e151. doi: 10.1097/CCM.0000000000000048

Figure 1.

Figure 1

Leptin expression is augmented in the lung during ALI. Immunohistochemical examination was performed for leptin in normal human lung tissue (A), human lung tissue from an ALI patient (B), human lung tissue from an H1N1-infected patient (C). Leptin is indicated by blue staining and nuclei are counterstained in red. Limited leptin staining was observed in normal human lung tissue and was localized in alveolar macrophages. Increased leptin expression in airway macrophages (black arrows) and alveolar epithelium (red arrows) in lung tissue of both ALI and H1N1 infected lung tissue was observed. Original magnification x 200 (inserts x 400).